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R. MATUSIMA
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T. MAKITA
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H. IKEGAMI
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N. KANO
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Author's Organization:From the Former National institute for Infectious Diseases of Horses, Hsinking, Manchoukuo. From the Former National institute for Infectious Diseases of Horses, Hsinking, Manchoukuo. From the Former National institute for Infectious Diseases of Horses, Hsinking, Manchoukuo. From the Former National institute for Infectious Diseases of Horses, Hsinking, Manchoukuo.